Linus

Linus the Minus, alternatively known as just Minus or The Night Man, is the secondary antagonist of The Adventures of Sharkboy and Lavagirl in 3-D. Linus is a bully from the world of reality who harasses Max for writing about his dreams, which Linus finds to be cringeworthy. However, Linus takes on the alter ego of Minus when in the world of dreams, teaming up with the forces of evil to destroy the world so that good dreams will be destroyed to spite Max.

Appearance
In the real world, Linus is a short-haired boy who wears a purple and black long-sleeved shirt with the letter L on it in white and white stripes on the sleeves, with dark blue jeans. However, when in the world of dreams, Linus takes on the form of his Shadow Minus. Minus is dressed in a purple and black jumpsuit with a raised collar, a long flowing black cape, and a purple minus on the front, with mild hairstyle differences to his real self.